Hi Dan - thanks for this, after doing a bit of research like you suggested I fould these guys http://www.managedcomms.co.uk/products/business-adsl-max
This is what there sales guy has wrote:
Based upon the postcode of SE1 3ER, I looked on our checker and evaluated an expected bandwidth of 6.3Mbps download, I can hypothesize that the upload can be expected to be 750Kbps.
The core of the network is maintained at 1:1 and is uncongested. After taking into account the contention of the lines from the exchange to your office, the worse-case contention ratio is 2.5:1.
Unfortunately due to the nature of ADSL I cannot offer any definitive guarantees on precise bandwidth, but once the connection has been established it will be more stable than a standard 20:1 connection.
The price below is the best quote I can give you:
Total cost of 1 x ADSL MAX Premium is £100.00 set-up and £80.00/month
My director has also offered you the following;
Total cost of 2 x ADSL MAX Premium is £200.00 set-up and £130.00/month
These connections would be separate from each other. In the future as your business requirements expand, the addition of one of our bonding devices would be the next logical step in increasing connectivity.
Please let me know if you have any more questions, or you would like me to send over an order form.